GemPage/PageFly Shopify Product Page Builder

Looking for an advanced product page/landing page builder who is extremely proficient with GemPages or a similar page building software.
I need modern, very high quality, straight forward pages with great looking icons that help create a seamless, easy shopping experience for a potential consumer. The goal for these pages is to get the benefits of the products across as easily as possible and convert as highly as possible.

Some examples of good landing pages:
1. ---------- (look through their product pages)
2. ----------
3. ---------- /products/aluminum-cardholder

Tell me what's good about these pages, what could be improved, and how you'd do better.

I have a basic page building SOP but I expect you to be proficient with page building and have extensive e-commerce experience. Understanding conversion rate optimization (CRO) is EXTREMELY important for this job, you will need a background with this or be willing to spend a lot of time learning it on your own to implement these best practices on the pages you build.

Don't apply if you don't have this skillset, your application won't be considered.